Ford Probe Owner's Manual page 228

Wiper blade maintenance
Check the windshield wiper blades at least twice
a year. Also check them whenever they seem
less effective than usual. Such substances as tree
sap and some hot wax treatments used by
commercial car washes reduce the effectiveness
of wiper blades.
If the blades do not wipe properly, clean both
the windshield and the wiper blades. Use
undiluted windshield washer solution or a mild
detergent. Rinse thoroughly with clear water. Do
not use fuel, kerosene, paint thinner, or other
solvents to clean your wiper blades. These will
damage your blades.
To make reaching the wiper blades easy, simply
turn the ignition switch to ACC and turn your
wipers on. Wait for them to reach a vertical
position and turn the ignition to OFF. Do not
move the wipers manually. Moving the wipers
manually may damage them.
Wiper blade replacement
If the wipers still do not work properly after
you clean them, you may need to replace the
wiper blade assembly. When replacing the wiper
blade assembly always use a Motorcraft part or
equivalent.
To replace the wiper blades:
1. Pull the wiper arm away from the
windshield and lock into the service position.
2. Turn the blade at an angle from the wiper
arm. Push the lock pin with a screwdriver to
release the blade and pull the wiper blade
down toward the windshield to remove it
from the arm.
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